This QSC SC-424 4-Way Screen Channel Loudspeaker, Tri- or Quad-Amp developed specifically for the unique requirements of professional motion picture playback, the SC-424 extends QSC’s commitment to the cinema market. As a member of the DCS Digital Cinema Speaker Series, the SC-424 is a 4-way, selectable tri or quad-amplified screen channel loudspeaker system comprised of two main units – the MHV-1090 mid-high-very high-frequency system and the LF-4215 low-frequency system.
The MHV-1090 mid-high-very high system features a high output, horn loaded 10” midrange cone driver and a coaxial neodymium high-frequency/very high-frequency compression driver. The MHV-1090 includes a driver protection network and a passive crossover for tri-amp operation. The protection circuitry prevents low-frequency signals from damaging the high-frequency and very high-frequency driver. A high power 10” cone driver allows operation as low as 250 Hz and the advanced phase plug coupling permits a crossover point of up to 1800 Hz to the high-frequency horn. This ensures that most of the dialog range is reproduced by a single element, for unmatched intelligibility
QSC SC-424 4-Way Screen Channel Loudspeaker, Tri- or Quad-Amp Features:
- Four-way selectable, tri or quad- amplified screen channel system
- Unique HF/VHF diaphragm has less mass than traditional diaphragms resulting in exceptional dynamic range, extended high frequency response and lower distortion
- LF-4215 is constructed of MDF and is heavily braced
- Low-distortion waveguides provide highly articulate dialogue
- Shallow depth (20-inch) facilitates installation
Why not buy this QSC SC-424 4-Way Screen Channel Loudspeaker, Tri- or Quad-Amp today?
QSC SC-424 4-Way Screen Channel Loudspeaker, Tri- or Quad-Amp Specifications:
| Specification | SC-424 | LF-4215 | MHV-1090 |
|---|---|---|---|
| Nominal Coverage | 90° horizontal by +20° to -30° vertical | ||
| Frequency Range (-6 dB) | 33 Hz–20 kHz | ||
| Active Crossover Frequencies | 250, 1700, and 6000 Hz, 24 dB per octave | ||
| Impedance | 4 ohms | MF: 8 ohms HF: 8 ohms VHF: 8 ohms |
|
| Sensitivity (1W/1m, half space) | 99.5 dB | Tri-amp MF: 105 dB HF/VHF: 110 dB |
Quad-amp MF: 105 dB HF: 110 dB VHF: 110 dB |
| Maximum Input Power | 8 hours, 6 dB crest factor IEC 268 noise 800 W continuous 2 hours, 6 dB crest factor pink noise AES 1000 W continuous |
MF: 275 W continuous HF/VHF: 200 W continuous |
MF: 275 W continuous HF: 100 W continuous VHF: 100 W continuous |
| Recommended Amplifier Power | 1600 W continuous maximum | MF: 800 W continuous HF: 500 W continuous VHF: 300 W continuous maximum |
MF: 800 W continuous HF: 500 W continuous VHF: 300 W continuous maximum |
| Recommended Processing | Subsonic filter below 30 Hz, >18 dB per octave | 4th order LR crossover at 250, 1700, and 6000 Hz via QSC processing | |
| Connectors | Barrier strip screw terminals accept up to #10 AWG stranded wire | ||
| Transducers | Two 15-inch (381 mm) high-efficiency extended bass woofers 4-inch copper voice coils |
MF: 10-inch high-efficiency horn-loaded cone with phase plug HF/VHF: Coaxial neodymium compression driver 3.5-inch HF diaphragm 1.75-inch VHF diaphragm |
|
| Enclosure | Quasi B4 alignment, ported Fully flared symmetrical ports Tuned to 36 Hz MDF construction, heavily braced Vandal-resistant woofer mounting bolts |
Tilt/Pan Bracket ±10° vertical tilt ±10° horizontal pan |
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| Dimensions (H × W × D) – Inches | 36 × 30 × 20.3 | 39 × 30 × 20 | 39 × 30 × 20 |
| Dimensions (H × W × D) – mm | 762 × 910 × 516 | 762 × 990 × 508 | 762 × 990 × 508 |
| Net Weight | 172 lb (78 kg) | 84 lb (38.5 kg) | 84 lb (38.5 kg) |
| System Weight | 256 lb (116 kg) | ||
| Baffle Cut-Out | 76-inch × 32-inch | ||
